Weston County, Wyoming
The most common soil here is Theedle, on about 8% of the land: a loam, a balanced mix that crumbles in your hand. Shingle and Tassel come next.
About 99% of the land drains well.
USDA rates 79% of the land very limited for a standard septic drain field, and 63% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: bedrock lies within 40 inches under 78% of it.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Weston County, Wyoming, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Entisols — young soils with little profile development, often on floodplains or steep slopes. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Weston County, Wyoming. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Forkwood-Cambria-Cushman loams, 0 to 12 percent slopes | 89K | Well drained | B | Somewhat limited | Somewhat limited |
| Tassel-Turnercrest fine sandy loams, 6 to 30 percent slopes | 84K | Well drained | D | Very limited | Very limited |
| Theedle loam, 0 to 45 percent slopes, gullied | 77K | Well drained | C | Very limited | Very limited |
| Shingle-Tassel complex, 2 to 30 percent slopes | 76K | Well drained | D | Very limited | Very limited |
| Forkwood-Cushman-Terro complex, 2 to 10 percent slopes | 69K | Well drained | B | Somewhat limited | Very limited |
| Kishona-Shingle-Theedle loams, 6 to 15 percent slopes | 62K | Well drained | B | Somewhat limited | Very limited |
| Savageton-Bahl clay loams, 2 to 10 percent slopes | 47K | Well drained | D | Very limited | Very limited |
| Samday-Savageton complex, 6 to 30 percent slopes | 47K | Well drained | D | Very limited | Very limited |
| Orella-Samday-Rock outcrop complex, 3 to 30 percent slopes | 46K | Well drained | D | Very limited | Very limited |
| Vonalee-Terro complex, 2 to 10 percent slopes | 46K | Well drained | A | Not limited | Not limited |
| Shingle-Samday-Rock outcrop complex, hilly | 45K | Well drained | D | Very limited | Very limited |
| Shingle-Theedle loams, 6 to 30 percent slopes | 43K | Well drained | D | Very limited | Very limited |
| Lakoa-Crownest complex, 10 to 60 percent slopes | 39K | Well drained | D | Very limited | Very limited |
| Absted-Bone complex, 0 to 6 percent slopes | 32K | Well drained | C | Very limited | Very limited |
| Haverdad-Clarkelen complex, 0 to 4 percent slopes | 32K | Well drained | B | Very limited | Somewhat limited |
| Bidman-Ulm complex, 0 to 6 percent slopes | 26K | Well drained | C | Somewhat limited | Very limited |
| Kishona-Theedle-Zigweid loams, 2 to 10 percent slopes | 23K | Well drained | B | Somewhat limited | Somewhat limited |
| Lohmiller-Haverdad complex, saline, 1 to 4 percent slopes | 20K | Well drained | C | Very limited | Very limited |
| Grummit-Maggin association, rolling | 18K | Well drained | D | Very limited | Very limited |
| Samday-Grummit complex, 2 to 30 percent slopes | 18K | Well drained | D | Very limited | Very limited |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 63% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 79% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.